Ekonomi, U. P. (2011). Malaysia: Rural water supply coverage, 1980-90. Jabatan Percetakan Negara.
シカゴスタイル引用形Ekonomi, Unit Perancang. Malaysia: Rural Water Supply Coverage, 1980-90. Jabatan Percetakan Negara, 2011.
MLA引用形式Ekonomi, Unit Perancang. Malaysia: Rural Water Supply Coverage, 1980-90. Jabatan Percetakan Negara, 2011.
警告: この引用は必ずしも正確ではありません.